Geo Omori

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Geo Omori
Born 1898
Died 1938
food poisoning
Style Brazilian jiu-jitsu, judo
Teacher(s) Tokugoro Ito
Notable students Luiz França[1]

Geo Omori (1898–1938) was a Japanese-born Brazilian martial artist, and one of the creators of judo-based martial arts in Brazil.[2]


Born in Tokyo, Omori joined the Kodokan school at 9 and gained his black belt at 17. He learned under Tokugoro Ito and was a training partner of the famed Sanpo Toku.[3]

After moving to Brazil, he opened the first jujitsu/judo school in that country in 1909.[4] He taught in Rio de Janeiro, and in 1925 opened a school in São Paulo.[5] He was instrumental in the establishment of Brazilian jiu-jitsu by establishing the first Jujitu school in São Paulo.[4] He would later instruct key Brazilian Jiu-Jitsu founder Luiz França.[4] His other student included Carlos Pereira.[2]

Fighting career[edit]

He was one of the first kings of mixed martial arts of his era.[6] He sparked the Vale Tudo craze of the 1920s and 1930s in Brazil.[4] Geo had an extensive fight history engaging fighters of various styles including capoeira, boxing, and wrestling.[4] A 1928 issue of The New York Times highlighted one of his fights against a "negro" capoeira fighter, in which Geo Omori won.[4] He fought many members of the Gracie family including George Gracie and Carlos Gracie.[4] His feud with Carlos Gracie is well documented.[7] One place of a documented fight of his was Circus Queirolos, a Brazilian Circus.[8] His death in 1938 was attributed to food poisoning.[9]